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HISTS = <a href="%pathto:misc.vl_samplinthist;">VL_SAMPLINTHIST</a>(INTHIST, BOXES) samples the integral
histogram INTHIST to obtain the histograms of the specified
BOXES.
</p><p>
INTHIST is a MxNxK array, where M x N are ``spatial'' dimensions,
and K is the number of histogram bins. INTHIST may be of class
UINT32 or DOUBLE.
</p><p>
Each box is a four dimensional vector [IMIN JMIN IMAX JMAX]' of
class UINT32 and correspond to the index set [IMIN, IMAX] x [JMIN,
JMAX]. To specify an empty box, let IMIN &gt; IMAX.
</p><p>
HISTS stores one histogram per column (one for each box) and has K
rows, one for each histogram bin. HIST is of the same class of
INTHIST.
</p><p>
See also: <a href="%pathto:misc.vl_inthist;">VL_INTHIST</a>(), <a href="%pathto:imop.vl_imintegral;">VL_IMINTEGRAL</a>(), <a href="%pathto:vl_help;">VL_HELP</a>().
</p></div></group>
